Multiple choice

The root of the equation $3x = \dfrac{{20}}{7} - x$ is

  1. 10/7

  2. 20/21

  3. 5/7

  4. -5/7

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

3x = 20/7 - x. Add x to both sides: 4x = 20/7. Divide by 4: x = 5/7.

AI explanation

To solve the linear equation 3x = 20/7 - x, first group the variable terms by adding x to both sides to get 4x = 20/7. Then, divide both sides by 4 to isolate x, giving x = 5/7.